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12N (1975AJ02)(See Energy Level Diagrams for 12N) GENERAL: See also (1968AJ02) and Table 12.25 [Table of Energy Levels] (in PDF or PS). Model calculations: (1973HA49, 1973KU1L, 1973SA30). Muon and neutrino interactions: (1972KE06, 1972UB01). Pion reactions: (1970HI10, 1970RA39, 1973BE1X, 1973UB01, 1974BO27, 1974EP02, 1974SE02). Other topics: (1969GA1G, 1972AN05, 1972JA14, 1972OC01, 1973HA77, 1973RO1R, 1974IR04).
See also (1971SH26, 1972VA36, 1973KU1L, 1973MA1K, 1973SU1B, 1974HA2C).
The half-life of 12N is 10.97 ± 0.04 msec: see Table 12.28 (in PDF or PS) in (1968AJ02). 12N decays to 12C*(0, 4.44, 7.65, 10.3, 12.71, 15.11): see Table 12.24 (in PDF or PS).
Observed neutron groups are displayed in Table 12.26 (in PDF or PS) (1966ZA01, 1968AD03, 1970BO39, 1971ADZZ, 1974FU11). Angular distributions have been studied at E(3He) = 2.5 to 5.8 MeV (see (1968AJ02)), at 11 MeV (1970BO39: n0 and n to 12N*(5.3)) and at 12.5 and 13 MeV (1974FU11: to states shown in Table 12.26 (in PDF or PS) except 12N*(2.4)). See also (1970CH1G).
Triton groups observed at E(3He) = 49.8 MeV are shown in Table 12.27 (in PDF or PS) (1968BA1E, 1969BA06). Angular distributions of inelastically scattered 3He to 12C*(15.11, 16.11, 16.58, 19.57) have been compared with those of the tritons to 12N*(0, 0.96, 1.19, 4.25). When the 3He cross sections are corrected for phase-space and isospin factors, the angular distributions are closely similar (to within 10%) to those for the triton groups, strongly suggesting isobaric analogues (1969BA06). Angular distributions have also been studied at E(3He) = 217 MeV (1974WI16: 0, 0.96, 3.53; partly resolved). See also (1970AR05, 1973PA1C).
At Ep = 46 MeV triton groups are reported to 12N*(0, 0.97, 2.41, 3.50, 4.51, 5.13, 6.12, 7.13) (1968FO1C, 1968TO1E, 1969KI1C; abstracts). See also (1971KA04; theor.).
See (1971DE37).
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